Vitamin B3 (Nicotinamide)
City: Marupe
Please avoid sudden changes in temperature and humidity, as they may affect the condition of derivative ingredients and tablets.
The shelf life begins from the date of manufacture at the factory.
Taking into account logistical and transportation stages, the remaining shelf life of the product is always shorter than the full shelf life.
We ship products to our customers with a remaining shelf life of no less than 70%.
Analysis Item | Unit | Specification | Test Method | Result |
Appearance | — | White crystalline powder | Visual Inspection | Complies |
Solubility | — | Freely soluble in water and in anhydrous ethanol, slightly soluble in methylene chloride | Visual Inspection | Complies |
Identification A | — | Infrared Absorption | Infrared Absorption | Complies |
Identification B | — | A245/A262 ratio is 0.63–0.67 | Ultraviolet Absorption | 0.66 |
Identification C | — | Thin-layer Chromatography | TLC | Complies |
Assay | % | 99.0–101.0 | Potentiometric Titration | 100.2 |
Melting Range | ℃ | 128–131 | Melting Point Apparatus | 128.7–129.2 |
Appearance of Solution | — | Not more intensely coloured than BY7 | Visual Inspection | Complies |
pH | — | 6.0–7.5 | pH Detectors | 6.97 |
Readily Carbonizable Substances | — | No more color than matching Fluid A | Visual Inspection | Complies |
Loss On Drying | % | ≤0.5 | Oven Drying | 0.03 |
Sulfated Ash | % | ≤0.1 | EP 2.4.14 | 0.01 |
Residue on Ignition | % | ≤0.1 | USP<281> | 0.01 |
Heavy Metals | ppm | ≤20 | CP2020<0821> | <20 |
Lead | ppm | ≤0.5 | CP2020<0406> | <0.5 |
Arsenic | ppm | ≤1 | CP2020<0822> | <1 |
Mercury | ppm | ≤0.1 | CP2020<2321> | <0.1 |
Cadmium | ppm | ≤0.5 | CP2020<2321> | <0.5 |
Aerobic Plate Count | CFU/g | ≤100 | Plate | <100 |
Moulds and Yeasts | CFU/g | ≤50 | Plate | <50 |
Coliform | MPN/g | ≤10 | Plate | <10 |
Related Substances (Unspecified) | % | ≤0.10 | HPLC | 0.034 |
Related Substances (Total) | % | ≤0.2 | HPLC | 0.036 |
E. coli (annual test) | MPN/g | Negative | GB 4789.38-2012 I | Negative |
Salmonella (annual test) | /25g | Negative | GB 4789.4-2016 | Negative |
Bulk Density (annual test) | g/ml | 0.5–0.6 | CP2020 | Complies |